1639402040

素因数分解:

$2^3\times 5^1\times {\mathrm{40985051}}^1$

素因数の和:40985062

約数の個数: 16

約数和(自身を含む): 3688654680

約数和(自身を除く): 2049252640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 40985051, 81970102, 163940204, 204925255, 327880408, 409850510, 819701020, 1639402040]

約数ペア:

[(1, 1639402040), (2, 819701020), (4, 409850510), (5, 327880408), (8, 204925255), (10, 163940204), (20, 81970102), (40, 40985051)]